package com.kuang.controller;

import com.sun.org.apache.xpath.internal.operations.Mod;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * Author: Zhang Dongwei
 * Date: 2022/7/30 20:41
 */
@Controller
public class MyController {
    @RequestMapping({"/", "/index"})
    public String toIndex(Model model){
        model.addAttribute("msg", "hello Shiro");
        return "index";
    }

    @RequestMapping("/user/add")
    public String add(){
        return "user/add";
    }

    @RequestMapping("/user/update")
    public String update(){
        return "user/update";
    }

    @RequestMapping("/toLogin")
    public String toLogin(){
        return "login";
    }

    @RequestMapping("/login")
    public String login(String username, String password, Model model){
        //        获取当前用户
        Subject subject = SecurityUtils.getSubject();
        //        封装用户的登录数据
        UsernamePasswordToken token = new UsernamePasswordToken(username, password);

        try{
            subject.login(token);  // 执行登录的方法，如果没有异常就说明ok了
            return "index";
        }catch (UnknownAccountException e){  // 用户名不存在
            model.addAttribute("msg", "用户名错误");
            return "login";
        }catch (IncorrectCredentialsException e){  // 密码不存在
            model.addAttribute("msg", "密码错误");
            return "login";
        }

    }
}
